Description
The Mishimoto Oil Cooler Kit (MMOC-WRX-01BK) is a black anodized, direct-fit oil cooler engineered specifically for the GD-chassis Subaru WRX and STi, built around the EJ205 and EJ255 engines. Mounted in the front grille for optimal airflow, this Mishimoto oil cooler is designed to drop oil temperatures over 20 degrees while installing in about two hours, making it a straightforward upgrade for street or track use.
This Mishimoto oil cooler kit belongs to Mishimoto’s Cooling lineup and is built to give WRX and STi owners better control over oil temperature under sustained load, whether commuting or lapping the track. The 10-row, bar-and-plate cooler core is engineered for only a 2 psi pressure loss, so it works to manage heat without robbing oil pressure. It’s offered as a black cooler in a non-thermostatic configuration, though Mishimoto also offers a thermostatic option and a silver cooler finish for owners who prefer a different look. Every Mishimoto oil cooler kit in this lineup is backed by Mishimoto’s Lifetime Warranty, giving buyers confidence in long-term durability.
Vehicle Applications
This Mishimoto oil cooler kit is a direct fit for the 2002-2005 Subaru Impreza WRX and the 2004-2005 Subaru Impreza WRX STi, covering the GD-chassis cars equipped with the EJ205 or EJ255 engine. Installation requires trimming of the exhaust heat shield, and the kit is not compatible with vehicles equipped with front mount intercoolers. It is designed to work with both automatic and manual transmission applications.
Features
- Provides a dramatic oil temperature drop of over 20 degrees
- Only 2 psi pressure loss through the 10-row bar-and-plate core
- Direct fit for 2002-2005 Subaru WRX and 2004-2005 STi, installs in about two hours
- Black anodized cooler finish; thermostatic option and silver cooler also available
- AN Flare male inlet and outlet fittings
- Includes application-specific mounting brackets, a 10-row oil cooler, a 3-ft stainless steel braided hose with -10AN fittings, a 4-ft 4-in stainless steel braided hose with -10AN fittings, an oil sandwich plate, a stainless steel sandwich plate adapter (M20), a banjo fitting with bolt (M20 x -10AN, black), a black rubber seal, and a mounting hardware set
- Backed by Mishimoto’s Lifetime Warranty
Specifications
- Core Type: Bar-and-Plate
- Grade Type: Performance
- Core Height: 2.76 in
- Core Thickness: 1.97 in
- Core Width: 11 in
- Color / Core Color: Black
- Finish: Anodized
- Inlet Fitting Type: AN Flare, Male
- Outlet Fitting Type: AN Flare, Male
- Engine Codes: EJ205, EJ255
- Chassis Code: GD
- Recommended torque for straight fittings and banjo bolts: 15-25 lb-ft; do not exceed 35 ft-lb maximum
Frequently Asked Questions
What vehicles does the Mishimoto MMOC-WRX-01BK oil cooler kit fit?
It is a direct fit for the 2002-2005 Subaru Impreza WRX and the 2004-2005 Subaru Impreza WRX STi, GD-chassis vehicles equipped with the EJ205 or EJ255 engine.
How much does this Mishimoto oil cooler lower oil temperature?
Mishimoto states this oil cooler kit drops oil temperatures over 20 degrees.
How long does installation take?
As a direct-fit kit, it can be installed in about two hours.
Will this oil cooler fit a car with a front mount intercooler?
No. Mishimoto notes this kit will not fit vehicles equipped with front mount intercoolers, and installation requires trimming of the exhaust heat shield. It fits both automatic and manual transmission applications.
What is included in the Mishimoto oil cooler kit?
The kit includes application-specific mounting brackets, a 10-row oil cooler, a 3-ft stainless steel braided hose with -10AN fittings, a 4-ft 4-in stainless steel braided hose with -10AN fittings, an oil sandwich plate, a stainless steel sandwich plate adapter (M20), a banjo fitting with bolt (M20 x -10AN, black), a black rubber seal, a mounting hardware set, and Mishimoto’s Lifetime Warranty.
What warranty comes with this cooler?
This Mishimoto oil cooler kit is backed by Mishimoto’s Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
